Questions specifically about Linux, as opposed to Unix-like systems in general, or to questions about a specific distribution or program.

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0
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0answers
2 views

Outgoing masquerade address changes after adding a second interface to the bridge

In fact I have the following configuration: extrouter(192.168.1.1) <- wifi -> [eth2 (192.168.1.11) Centos 6/6 based host br0 (172.22.5.254)] br0 contains two tap interfaces (tap0/172.22.5.1 ...
2
votes
1answer
1k views

SSH agent forwarding, multiple hop

I tested this setup with Linux origin machine - everything is the same - only the first hop can use keys from origin machine. Initial problem I'm trying to set up SSH agent forwarding with multiple ...
2
votes
1answer
397 views

VPN client for linux machine + support checkpoint gateway

Since Checkpoint Company does not have a VPN client for Linux (checkpoint VPN SNX R71 is not fit for us because this VPN required changes on the gateway side ). I'm trying to find if there is a VPN ...
1
vote
1answer
54 views

Samba Tuning (Very low data transfer rates)

I have been trying to tune my Samba server for a while now and have had very little luck. At first I thought it could have had something to do with my router but recently purchased a new one with ...
1
vote
1answer
454 views

Why system call hooking produces different result everytime in Linux/Android 2.6.29?

I have implemented system call hooking for Android 2.6.29 kernel through a LKM module. I am tracing down one Android app for system calls. But interestingly, it returns different results every time I ...
1
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0answers
7 views

can i use lirc using the i/r on my rtl2832U dongle as regular or seperate i/r port?

although this might have rtlsdr tone to it but i am on a hunt for info, tip, tricks & mods related to lirc while trying to get it (or some kind of version) to work on my linux machine. ultimately ...
0
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1answer
10 views
+150

How to get a grsecurity kernel on Debian Wheezy using the linux-patch-grsecurity2 package?

There is a package linux-patch-grsecurity2. But it seems to be lacking documentation. How to make use of linux-patch-grsecurity2 to get a grsecurity enabled kernel?
1
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0answers
10 views

how to troubleshoot domain name before re-pointing Nameservers

suppose I have a site: awesomefootball.com hosted on a Linux server with db etc.. For testing, I know how to pull a copy to my MacBook and set up /etc/hosts file to let me test at ...
1
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0answers
4 views

KDE5 Digital clock widget show a different time, than the configured

I'm using KDE 5 over Arch Linux, and the digital clock widget show a different time than the configured for kde. The widget can be configured to show a different time changing the timezone for it. But ...
10
votes
9answers
6k views

How to flash firmware under Linux in practice?

Well, I am feeling too old for jumping through several burning hoops to upgrade several firmwares via the usual vendor-specific way: Download some DOS tools, waste some time creating a (Free-)DOS boot ...
2
votes
0answers
37 views

Test if postfix is running

I'm searching for a reliable way to test if postfix is running from inside a bash script. My first attempt was simply trying pidof postfix, which doesn't work. Then I tried to get the postfix ...
1
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0answers
17 views

Libpcap share directory method missing

so im trying to run a c program but everytime i try to run it i get this message error while loading shared libraries: libpcap.so.0.8: cannot open shared object file: No such file or directory ...
32
votes
1answer
14k views

Kernel inotify watch limit reached

I'm currently facing a problem on a linux box where as root I have commands returning error because inotify watch limit has been reached. # tail -f /var/log/messages [...] tail: cannot watch ...
0
votes
0answers
9 views

CentOS install spanning 2 or more CDs

I have a custom CentOS install which used to fit on 1 CD. With recent additions, it takes up more space than can fit on 1 CD. Some of our customers have old systems that aren't DVD compatible so we ...
0
votes
1answer
14 views

Unlist update from update list openSuse

Is there a way to stop openSuse from trying to install a particular update? Everytime I have new updates, it tries to install kernel-desktop-3.11.10-25.1 (x64) along with a newer version (currently ...
1
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0answers
27 views

Two *different* mountpoints having the *same* absolute path (bind-mount problem)

Scenario a NFS share is mounted on /mnt/temp/dir (and other shares are mounted in subdirectories), I umount everything there but supposedly, it doesn't work well (maybe I start with umount ...
1
vote
1answer
1k views

How to execute Windows commands remotely from Linux machine using rdesktop command?

Is it possible to run Windows commands using rdesktop tool in Linux? I tried with rdesktop -s option: rdesktop -u user -p 10.0.0.2 -s "cmd.exe" but I'm not able to open the cmd.exe using the above ...
1
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0answers
78 views

Error while booting Ubuntu 14.04 - setterm: $TERM is not defined

Yesterday I restarted my Notebook with Ubuntu 14.04 and got the following error message in between the login-screen and the loaded user interface. Error found when loading /etc/profile setterm: ...
1
vote
2answers
62 views

Search for matching files with wildcards without using find in a bash script

For an assignment, I'm supposed to write a bash script that can act as a very basic find, but without actually using the find command. For example, if I put in this input: my_find ~/homedir/ -name ...
0
votes
1answer
643 views

How to select which graphics card to use?

I have a desktop with an integrated graphics card, which i want to use, and a PCI graphics card. I would like to display video through the integrated graphics, and use the PCI card for CUDA based ...
0
votes
1answer
746 views

Unable to mount root fs over NFS

I am attempting to set up the first (of many) Raspberry Pis running Pidora (a Fedora Remix) to boot from an NFS share. It is my goal to eventually place a dozen or more Raspberry Pis in the datacenter ...
1
vote
1answer
33 views

Link Local IPv6 address keeps being automatically assigned

I'm looking to prevent the IPv6 link local address from being randomly assigned. I'm not looking to disable v6 but rather statically assign my own link local. I've done ifconfig vboxnet0 inet6 add ...
0
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0answers
6 views

Bad resolution (max 1024x768) ElementaryOS (Ubuntu)

I installed Ubuntu (Elementary OS) a week ago and the resolution was always max 1024x768, but I want 1920x1080. I have searched in the internet for solutions, but I didn't find working ones. I tried ...
1
vote
0answers
9 views

How to map Alt+H to the Arrow-left key?

I would like to have my HJKL keys to function as arrow keys whenever the alt-key is pressed down. Also other combinations should work, such as Ctrl-Left should be executed when Alt-Ctrl-H is pressed. ...
1
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0answers
20 views

HDD and SDD partition help

I have just got my Thinkpad T420 with an additional mSATA drive and i couldn't be more excited. My current partition layout is: HDD: /boot 256MB, /var 30GB, /opt 50GB SDD: / 15GB, /home/ 50GB, ...
0
votes
1answer
55 views

Did Linux have a bug where reading /dev/null would crash the system?

About 10 years ago I've been told by someone that for years Linux used to crash whenever you tried to read /dev/null (ie. cat /dev/null). Is this actually true? Did such a bug exist? And if it did, ...
1
vote
1answer
25 views

Calculating RAM/Swap Space Requirements [duplicate]

I have been developing a MySQL database that makes some use of BLObs. This has now been transferred on to a virtual machine (VM) in preparation for going fully into the 'cloud'. However some of the ...
1
vote
2answers
1k views

running kernel on QEMU

I face this message: Failed to execute /initKernel panic - not syncing: no init found. Try passing init=option to kernel. I am using this command line: qemu-system-x86_64 -hda disk.img -kernel ...
0
votes
1answer
619 views

Playing or converting .dv4 files in Linux

I need to find a way to playback a number of .dv4 files on Ubuntu 12.04 and Fedora 20, possibly after having converted them to a more conventional format. So far I have managed to convert the files ...
0
votes
1answer
21 views

IPTables Firewall/Router/Gateway needing to block outbound traffic from users

I have multiple ethX interfaces. eth0 is connected to the internet. eth1 is connected to a trusted network. eth2 is connected to a network I need to impose usage rules. What I'd like to do is ...
0
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0answers
17 views

Linux user ssh connection disabled after execution of setfacl command

I have very little linux administration experience, after searching a lot stuff online, finally I decided that I must hope that someone helps. The problem is, I needed to share an account with a ...
3
votes
1answer
520 views

Boot graphical application straight from Linux bootup (without verbose boot messages and desktop)

Is it possible to boot from minimum Linux core(Linux/Android) to an application (preferably created in interchangeable platform languages such as C# – Mono / GTK / Java / C) without any verbose ...
0
votes
0answers
11 views

No cursor/caret in Linux VMC under Windows Hyper-V?

I have just installed CentOS-7, Minimal Installation, into a Hyper-V VM under Windows Server 2008 R2. When I Start the VM from Hyper-V Manager it opens a window it calls Virtual Machine Connection, ...
1
vote
0answers
29 views
+50

How to audit access to any file or folder within a given path for specific user

I've been reading some information about configuration of auditd and I just can't figure this out, what I know how to do Log specific system calls by a user Log access to a specific file by all ...
0
votes
0answers
12 views

Plain remote Linux desktop on my VNC Viewer?

So for some reason my VNC Viewer is not showing any desktop icons on the remote Linux. I remember it first happened after I clicked on the button "Quit this session". I am using putty as a terminal ...
1
vote
0answers
21 views

Turn off mirror display on startup on Elementary OS

I'm running Elementary OS Freya Beta 2 with dual displays. I added some xrandr commands to run at startup so the monitor I want is the primary monitor and that the dock starts on the right monitor. ...
4
votes
2answers
8k views

Installing wireless driver (realtek 8188CE) on Debian wheezy

I had a hard time installing the wireless driver for my debian. My debian was Sqeeze but soon after I realized Wheezy was the one to support my wireless adapter, realtek 8188CE,I upgraded to wheezy. ...
10
votes
11answers
3k views

Screen corruption after hibernate — Is there another way to refresh the X11 display?

When I restore from hibernate the screen is often corrupted. I suspect the graphics memory is not being saved. Suspend-to-ram works fine otherwise. It also looks like the font-cache is corrupted, as ...
1
vote
0answers
24 views

tar --occurrence= option ignored?

Using GNU tar 1.26 on Linux, I'm looking for a way to stop processing after the N-th occurrence of a file in a .tar archive. This should work: tar --file=archive.tar --list --occurrence=1 filename ...
0
votes
0answers
24 views

keep getting broken pipe when ssh

I'm using Ubuntu 14 LTS with two machines. When I ssh into the remote machine, I keep getting pipe broken after une minute or two, and in my ssh client I set up the keepalive already. This happens ...
3
votes
0answers
13 views

Linux, SVN and Dropbox — Which directory should store my svn repository?

I'm trying to set up a linux server for a small team of programmers / artists to use as a svn repository. This repository will be restricted to lan usage but will be backed up online using dropbox. ...
-2
votes
1answer
26 views

What ./configure make and make install does [on hold]

I would like to know exact backgounf taks that happen when you install an application from source What happens when you run ./configure What happens when you run make What happens when you run make ...
1
vote
0answers
6 views

Can I mount a share and enable the user_xattr mount option?

I have a ext4 drive that is mounted using defaults mount options. It is a RedHat Enterprise Linux version 6.5, 64 bits. I can call lsattr on any file on that server. I need to share that drive with 3 ...
0
votes
5answers
656 views

Download n Upload files via telnet session

I have an attendance Device with Linux OS installed. I am able to connect that device via telnet session. There are some files in the device which I need to download and upload with new files. How can ...
1
vote
1answer
9 views

Login using Private key on USB Dongle on SSH@linux

I'm presently using PPK file (public and private key pair) generated from putty to Login (password less) through ssh in Linux server and it is working well. I am exploring possibility in using my ...
1
vote
3answers
2k views

Start linux in text mode

I know that it ask so many time, how to boot Linux in text mode; but all solution that i got is on installed Linux system, not on fresh system. Is there any way to load any Linux in live mode in text ...
3
votes
0answers
10 views

Set SLIP Between xenix and linux

For study purpose i want to set a slip-serial tcp connection between a new linux machine and old xenix machine wich run on VirtualBox. I've setup xenix Virtual Machine with two serial ports: one on ...
5
votes
1answer
562 views

SquashFS image as rootfs in LXC

Is it possible to use a SquashFS filesystem as an LXC rootfs? I can mount an ext3 image as a rootfs just by setting lxc.rootfs to the filename, but if it's any other type of image, lxc-start just says ...
3
votes
2answers
27 views

Exchange data between two identical hard drives

I have two identical hard drives (same model) in my system. One is used for data which is not important (could be downloaded again but would take an eternity). The other is my system disk. Now my ...
2
votes
1answer
29 views

Mount a windows share without having root credentials

I am trying to mount a Windows shared folder in my home folder. I am able to execute the following command from a Linux (i.e., CentOS) machine which I have sudo access. The command that I am using ...